Why is the fast-frozen food PP blister tray not hard enough and easy to crack?

The PP blister tray is a soft material with a very high toughness. It can be refrigerated in a cold storage or heated in a microwave oven. It is the best material for quick-frozen food trays. However, some inquiries have recently been received. Some customers have responded that the PP quick-frozen food trays they had previously found for others are not only hard and very brittle, they are easy to crack. Why is this?

The answer is simple: cheap and not good! PP blister trays have become a common packaging in the food packaging industry due to their excellent characteristics, but this also makes the price of genuine PP new materials high, while the high material cost leads to the price of blister trays. high. The huge market demand has created a batch of workers who cut corners and shoddy, shoddy, and used PP plastic blister trays to make goods with poor quality recycled materials. A pallet of the same size, with a new PP material, may cost at least 3, 4 cents, but they can be made with only 1, 2 cents, or even lower. Because they use thinner materials, worse materials. The result is that the blister tray is not stiff enough and is easily brittle.